{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50317","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-09-15T14:18:36.814Z","datePublished":"2025-09-15T14:48:50.167Z","dateUpdated":"2026-05-11T19:16:58.589Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:16:58.589Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/bridge: megachips: Fix a null pointer dereference bug\n\nWhen removing the module we will get the following warning:\n\n[   31.911505] i2c-core: driver [stdp2690-ge-b850v3-fw] unregistered\n[   31.912484] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI\n[   31.913338] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]\n[   31.915280] RIP: 0010:drm_bridge_remove+0x97/0x130\n[   31.921825] Call Trace:\n[   31.922533]  stdp4028_ge_b850v3_fw_remove+0x34/0x60 [megachips_stdpxxxx_ge_b850v3_fw]\n[   31.923139]  i2c_device_remove+0x181/0x1f0\n\nThe two bridges (stdp2690, stdp4028) do not probe at the same time, so\nthe driver does not call ge_b850v3_resgiter() when probing, causing the\ndriver to try to remove the object that has not been initialized.\n\nFix this by checking whether both the bridges are probed."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c"],"versions":[{"version":"7649972d97fb98578fbc4a351416cf72895e7c4d","lessThan":"aaa512ad1e59f2edf8a9e4f2b167a44b24670679","status":"affected","versionType":"git"},{"version":"16e3827904932eccfba0915f0c93b519de3536ac","lessThan":"5bc20bafcd87ba0858ab772cefc7047cb51bc249","status":"affected","versionType":"git"},{"version":"50ad94f8654a53ec9ca3604a7a23cbaf166e0119","lessThan":"1daf69228e310938177119c4eadcd30fc75c81e0","status":"affected","versionType":"git"},{"version":"b8d10f601f226f055df8b5368d7ea7f369136cd5","lessThan":"877e92e9b1bdeb580b31a46061005936be902cd4","status":"affected","versionType":"git"},{"version":"405856460d3e7aefb7c1aef047ec88fc4ef2e2a5","lessThan":"4610e7a4111fa3f3ce27c09d6d94008c55f1cd31","status":"affected","versionType":"git"},{"version":"11632d4aa2b3f126790e81a4415d6c23103cf8bb","lessThan":"21764467ab396d9f08921e0a5ffa1214244e1ad9","status":"affected","versionType":"git"},{"version":"11632d4aa2b3f126790e81a4415d6c23103cf8bb","lessThan":"7371fad5cfe6eada6bb5523c895fd6074b15c2b9","status":"affected","versionType":"git"},{"version":"11632d4aa2b3f126790e81a4415d6c23103cf8bb","lessThan":"1ff673333d46d2c1b053ebd0c1c7c7c79e36943e","status":"affected","versionType":"git"},{"version":"e449461989f0674f188d30494ffd3f5ba74c1a05","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c"],"versions":[{"version":"5.17","status":"affected"},{"version":"0","lessThan":"5.17","status":"unaffected","versionType":"semver"},{"version":"4.14.296","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.262","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.220","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.150","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.75","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.19.17","lessThanOrEqual":"5.19.*","status":"unaffected","versionType":"semver"},{"version":"6.0.3","lessThanOrEqual":"6.0.*","status":"unaffected","versionType":"semver"},{"version":"6.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14.263","versionEndExcluding":"4.14.296"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.226","versionEndExcluding":"4.19.262"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.174","versionEndExcluding":"5.4.220"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.94","versionEndExcluding":"5.10.150"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.17","versionEndExcluding":"5.15.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"5.19.17"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.0.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/aaa512ad1e59f2edf8a9e4f2b167a44b24670679"},{"url":"https://git.kernel.org/stable/c/5bc20bafcd87ba0858ab772cefc7047cb51bc249"},{"url":"https://git.kernel.org/stable/c/1daf69228e310938177119c4eadcd30fc75c81e0"},{"url":"https://git.kernel.org/stable/c/877e92e9b1bdeb580b31a46061005936be902cd4"},{"url":"https://git.kernel.org/stable/c/4610e7a4111fa3f3ce27c09d6d94008c55f1cd31"},{"url":"https://git.kernel.org/stable/c/21764467ab396d9f08921e0a5ffa1214244e1ad9"},{"url":"https://git.kernel.org/stable/c/7371fad5cfe6eada6bb5523c895fd6074b15c2b9"},{"url":"https://git.kernel.org/stable/c/1ff673333d46d2c1b053ebd0c1c7c7c79e36943e"}],"title":"drm/bridge: megachips: Fix a null pointer dereference bug","x_generator":{"engine":"bippy-1.2.0"}}}}